A kind of preparation method of eucalyptus relic Fe2O3/Fe3O4 composite heavy metal adsorbent

A technology for eucalyptus remains and heavy metals, which is applied in the fields of waste resource utilization and water treatment, can solve the problems of pollution, unfavorable ecological environment sustainable development, resource waste, etc. Effect

Active Publication Date: 2011-11-30
BEIJING GEOENVIRON ENG & TECH
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Problems solved by technology

At present, the use of eucalyptus is mainly concentrated in pulp, fiber and plywood, and the main trunk of eucalyptus is mainly used. The roots and branches of eucalyptus are usually discarded or used as firewood. These parts are renewable wa

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  • A kind of preparation method of eucalyptus relic Fe2O3/Fe3O4 composite heavy metal adsorbent
  • A kind of preparation method of eucalyptus relic Fe2O3/Fe3O4 composite heavy metal adsorbent
  • A kind of preparation method of eucalyptus relic Fe2O3/Fe3O4 composite heavy metal adsorbent

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Embodiment 1

[0024] 1. Eucalyptus Fe 2 o 3 / Fe 3 o 4 Preparation of composite heavy metal adsorbent:

[0025] (1) 1 kg of eucalyptus root or branch wood is peeled, and after drying, the cut size is about: long × wide × high=30mm × 10mm × 3mm block;

[0026] (2) configuration volume concentration is the dilute ammonia water of 5% as soaking agent;

[0027] (3) dissolving ferric nitrate in ethanol-ultrapure water mixed solvent with a volume ratio of 1:1, and preparing a concentration of 1.2mol / L ferric nitrate solution as a precursor solution;

[0028] (4) Place the product obtained in step (1) in the cooking agent obtained in step (2), and cook for 6 hours at a temperature of 105° C. to complete the extraction pretreatment;

[0029] (5) Wash the product obtained in step (4) with ultrapure water, and dry it in an oven at 80°C for 24 hours;

[0030] (6) Submerge the product obtained in step (5) in the precursor solution obtained in step (3), and keep it in a water bath at a temperature ...

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Abstract

The invention discloses a preparation method of a eucalyptus biomorphic Fe2O3/Fe3O4 composite heavy metal adsorbent. According to the invention, dilute ammonia water is adopted as a digestion agent, and a pretreatment of extraction is carried out. Ferric nitrate is adopted as a precursor solution, and the eucalyptus biomorphic Fe2O3/Fe3O4 composite heavy metal adsorbent with a natural plant structural form is produced through a manual controlled preparation technology. Experimental measurements are carried out upon phase, structure, components and appearance characteristics of the absorbent. The adsorbent is applied in a water environment toxic heavy metal absorption treatment experiment. As a result, the material is cheap and environment-friendly. The preparation method provided by the invention provides a novel method and a novel approach of eucalyptus wood material utilization.

Description

technical field [0001] The invention belongs to the technical field of waste resource utilization and water treatment, and relates to a eucalyptus relic Fe 2 o 3 / Fe 3 o 4 The preparation method of the composite heavy metal adsorbent, especially using eucalyptus as a plant template, through process control, prepared Fe 2 o 3 / Fe 3 o 4 Heavy metal composite adsorbent as the main material. Background technique [0002] Heavy metals are toxic elements that can accumulate in organisms. With the development of industry, heavy metal pollution has been widely valued. After entering the environment, heavy metals will accumulate and enrich in the biological chain, and cannot be biodegraded. They can be latent in the environment for a long time. It enters the human body along with the food chain and seriously endangers life and health. At present, the removal methods of heavy metals in water mainly include chemical precipitation, electric flotation, ion exchange, membrane sepa...

Claims

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Application Information

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IPC IPC(8): B01J20/08B01J20/32
Inventor 朱宗强朱义年秦辉李宗宁魏彩春梁美娜李艳红梁延鹏
Owner BEIJING GEOENVIRON ENG & TECH
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